Page 11311.7.2 Engineer Parameter ListParameter number Description Units Range Default ValueP 00 CH Anti-Cycle time mins 0-10 0P 01 CH Pump Overrun time secs 0-240 60P 02 DHW Pump Overrun time secs 0-240 0P 03 DHW min flowrate l/min/10 15-40 15P 04 CH Pump Speed % 50-100 100P 05 DHW Tank Pump Speed % 50-100 100P 06 DHW Programmer Type N/A 0-1 0P 07 CH Programmer Type N/A 0-1 0P 08 DHW Tank setpoint offset °C 0-30 6P 09 DHW Tank Differential °C 1-10 6P 10 CH Temp Differential °C 2-10 5P 11 Low pressure shutdown bar/10 2-10 6P 12 High pressure shutdown bar/10 24-28 28Detailed descriptions of the Engineer Parameters can be found below:Parameter DescriptionP00 Used to prevent the burner firing in CH mode for a period after it laststopped, to prevent inefficient short cycling of the burner CH mode.P01 Keeps the circulating pump running for a period after the last CH cycle, todistribute heat within the primary heat exchanger after a CH cycle.P02 Keeps the circulating pump running for a period after the last DHW cycle,to distribute heat within the primary heat exchanger after a DHW cycle.P03Minimum DHW flow rate for activation of the DHW Instantaneous cycle,measured in litres/minute/10. For example P03=15, means 1.5litres/minute.P04 Circulating pump speed during CH cycle, this can be reduced dependingon system requirements.P05 Circulating pump speed during DHW Tank cycle, this should be kept at100% for fastest tank re-heat.P06 DHW Programmer Type. 0 = External Time Programmer Control1 = Internal Time Programmer ControlP07 CH Programmer Type. 0 = External Time Programmer Control1 = Internal Time Programmer ControlP08 Temperature above DHW setpoint the Tank Cycle switches off at.P09 Temperature differential on DHW Tank cycle.P10 Temperature differential on CH cycle.P11 Minimum allowable system water pressure in bar/10. For example P11=6,means 0.6 bar.P12 Maximum allowable system water pressure in bar/10. For exampleP12=28, means 2.8 bar.
